0.88u2

General Improvements
--------------------

Further improvements to the FD1094 decryption, this is now almost fully understood,
additional FD1094 cpus are needed to work out the remaining details.  Keys are now
stored in the romsets as they should be a close representation of the data stored in
the FD1094 CPUs [Nicola Salmoria]

Fixed a few things which missed the Namco update in u1 [Phil Stroffolino]

Corrected some rom names in Crowns Golf [ShinobiZ]

Corrected some rom names in Pengo [Gerald]

Improvements in Mighty Warriors Driver [Pierpaolo Prazzoli]
	Added sprites buffer which fixed the "invisible" sprites
	Fixed text tilemap scrollx offset
	Haze added palette brightness

Improvements to Twin Brats [Pierpaolo Prazzoli]
	Fixed sound banking
	Changed service switch button
	Changed visible area
	Merged memory map

Moved gamename prefixes to end in pc10, nss and megatech [Aaron Giles]

Fixed Joystick Axis problem [Aaron Giles]

Discrete Sound Improvements [Derrick Renaud]

	Discrete Sound Changes
	======================
	* DISCRETE_555_ASTABLE - added option to use quick charge diode (will be
	needed for frogs.)  Added option to disable oscillation if R1 (charge) is out
	of circuit (will be needed by invaders.)
	* DISCRETE_555_CC - modified to discharge cap due to natural losses if there
	is no charging current (needed by frogs.)  This makes it more accurate then
	the current perfect cap that will retain a charge forever.
	* modified all current drivers to use new code.
	
	New Discrete Modules Added
	==========================
	* DISCRETE_555_MSTABLE - 555 Monostable simulation
	
	Game Driver Changes
	===================
	* frogs - added sound hooks.  Added discrete "tongue" sound effect.

Fixed bug in discrete code [Brad Oliver]

Improvements to Astrocade driver [Frank Palazzolo]
	- Professor Pacman Driver - works but fails 2 self-tests yet
	- Fixed collision detection in all games
	- Added NVRAM handling to robby (and profpac) - still not working 
	always but self-tests pass.
	- Fixed bugs in astrocade sound code
	- Switched astrocade sound to stream system
	- Support stereo in wow, robby, gorf, profpac (Sounds great now!!)
	- Leds and coin counters added
	- All activecpu_get_reg() calls from astrocde games have been
	  replaced with proper 16-bit Z80 port support through memory system
	- Renamed sndhrdw/astrocde.c to sndhrdw/wow.c since it is game-
	specific

Fixed NMI handling in NEC cores [Bryan McPhail]

Cleaned up Twins driver and changed to use V20 [Pierpaolo Prazzoli]

Some hyperstone debugger cleanups [Pierpaolo Prazzoli]

New Games supported or promoted from GAME_NOT_WORKING status:
-------------------------------------------------------------

Bonks Adventure [Sebastien Volpe]
	some gfx/sound issues

Professor Pacman [Frank Palazzolo]

New Clones supported or promoted from GAME_NOT_WORKING status:
--------------------------------------------------------------

Superman (Japan) [Fabrice Arzeno]

Gun Ball [Bryan McPhail] *edit - actually i missed this one from driver.c, it'll be in u3

Hot Bubble [David Haywood]

Force Break [Pierpaolo Prazzoli]

New Non-Working games / clones supported
----------------------------------------

Super Lup Lup Puzzle
	hyperstone CPU core bugs

Raiden Fighters Jet
	encrypted gfx
	
Born to Fight
	gfx emulation problems